Sparking device.



Patented lune l7, I902.

C. 0. WHITE. SPARKING DEVICE.

(Application filed Feb. 12, 1902.

(No Model.)

\NVENTOR 'TNEssEsv cLAR NCE m-re BY M 7% ms ATTORNEYS.

YNI NOBRI5FITC l Fries.

CLARENCE 0. WHITE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO GLOBE IRON WORKS, OF MINNEAPOLIS, ll NESOTA.

IINNESOTA, A CORPORATION OF MIN- SPARKENG DEWOE.

SPECIFICATION forming part of Letters Original application filcdDeccmber 3,1900 Serial No. 38,448. No, 93,658.

l atent No. 702,895, dated June 17, 1902,

Divided and this application filed February 12, 1902. Serial (No model.)

To aZZ whom, it may concern.-

Be it known that I, CLARENCE O.Wrr1rn,of the city of Minneapolis, county of Hennepin, State of Minnesota,have invented certain new 5 and useful Improvements in Sparking Devices, of which the following is a specification.

This invention relates to improvements in internal-combustion engines,and particularly to that type of internal-combustion engines IO that are commonly known as gasolene-engines.

The object of my present invention is to provide an improved sparking device by means of which the vapor in the cylinder of the engine may be exploded in the operation of the engine.

The invention will be more readily understood by reference to the accompanying drawings, forming part of this specification, and

in which- Figure 1 is a perspective view of a gasoleneengine embodying my invention. Fig. 2 is a transverse vertical section of the same. Fig. 3 is a detail of the fly-wheel, showing the ar- 2 5 rangement of the dynamo and its relation thereto.

In the drawings, 2 represents the enginebase; 3, the cylinder; l, the main shaft, and 5 the engine fiy-wheel. These parts may be of any ordinary or preferred construction.

I have here shown an engine of the general construction described and claimed by me in application Serial No. 38,448, filed December 3,1900,of which this application is a division;

but I make no claim herein to the construction of the engine, having claimed the same either in my said application serially numbered 38,448 or another application of even date herewith.

The engine that I have herein shown is provided with a suitable dynamo 7,that is mounted upon a suitable base 8, that is in turn arranged upon the base 2 of the engine. This dynamo is electrically connected with a suitable igniter projecting into the cylinder or explosion-chamber of the engine. The dynamo-shaft 9 is provided with a suitable friction-pulley 10, that engages a ring or pulley 11, that is connected to or formed integrally with the fiy-Wheel 5. The rear edge of the base-plate Sis connected to the base 2 by any suitable means, preferably by suitable bolts 12, and the forward edge of the base is provided with an adjusting-screw 13, by means of which said forward edge may be raised or lowered, thereby bringing the friction-pulley 10 into contact with the ring 11 or out of contact with said ring. A friction-pulley l-l is mounted upon a standard 15, said standard being pivotallysupported upon the base-plate 6o 8. An adjusting-screw 16 is provided, by means of which said pulley 14: may be adjusted toward or from the pulley 10. When the engine is in operation, the base-plate 8 is adjusted, so as to bring the pulley 10 into contact with the rim or ring 11, and thereby the dynamo will be driven by fric tional contact of the pulley 10 and the rim or ring 11. In starting an engine of this kind it is customary to take hold of the fly-wheel 7o by hand and to whirl it around. This operation would turn the dynamo shaft quite slowly, and therefore the desired current would not be generated. The pulley 14, as shown, comes inside of the outer rim or ring 17 of the fly-wheel. (See Fig. 3.) By means of the screw 13 the forward edge of the baseplate 8 may be raised or lowered, thereby bringing the pulley 14L into contact with the inner surface of the rim 17, while the pulley 8o 10 will simultaneously be moved out of contact with the rim or ring 11. By this means when it is desired to start the engine, the pulley 14 being in contact with the inner surface of the rim 17, the fiy-wheel may be whirled by hand and the dynamo-shaft rotated at the proper speed through the contact of the rim of the fly-wheel with the pulley 1d and through contact of the pulley 14: with the pulley 10 and the dynamo-shaft. As soon as the engine 0 has gotten under way the base-plate 8 is adjusted so as to move the pulley 14 out of contact withthe rim 17 and the pulley 10 into contact with the ring or rim 11.

I do not limit myself to the details of the 5 construction herein shown and described, as the same may be varied without departing from my invention.

I claim as my invention- 1. The combination, in an internal-combustion engine, with a flywheel provided with the ring 11 and with the internal rim 17, of

a dynamo mounted upon amovable base and provided with friction-Wheels 10 and l t, and means for bringing one of said Wheels in contact with said ring, or the other Wheel in contact with said rim, for the purpose set forth.

2. lhe combination, With the fly-Wheel, provided With ringsurfaces of different diameters, of a dynamo provided with a movable base and With friction driving-pulleysadapted to be brought into contact with one or the other of the ring-surfaces upon said fly-Wheel, substantially as described.

3. The combination, with a Iiy-wheel havi5 ing ring-surfaces of different diameters, the

dynamo provided with a verticallyunovable 0. N1 UTE. 

